Add html coverage report.
Add basic string filter.

This is mostly identical to the one from tol-base, but I improved some
of the phpdoc, removed tol-base dependency, and restricted minLength and
maxLength to positive numbers.
Merge pull request #2 from nubs/string-filter

Add basic string filter.
Merge pull request #4 from nubs/html-coverage

Add html coverage report.
Rename composer package to dominionenterprises/filter.
Merge pull request #5 from gaillard/forNubs

Rename composer package to dominionenterprises/filter.
Add int filter.
Merge pull request #6 from gaillard/master

Add int filter.